This is a Class A Shipment Operational Specifications: • MAX OPERATING TEMPERATURE: 100o F (38o C) • MAX OPERATING PRESSURE: 125 psi ( 826 kPa) This system is designed to treat cold water only. The installation must be on a cold water supply. Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system. Systems certified for cyst reduction may be used on disinfected waters that contain filterable cysts. This system must be installed in accordance with all applicable state and local laws and regulations. H1-WCS-10, H3-WCS-10, H3T-WCS-10, H1-WC-10, H3-WC-10,H3T-WC-10, H1-WCES-15, H3-WCES-15,H3T-WCES-15, H1-WCE-15, H3-WCE-15,H3T-WCE-15, H1- WCSL-10, H3-WCSL-10, H3T-WCSL-10 MODELS ARE TESTED AND CERTIFIED BY IAPMO R & T to NSF/ANSI STANDARDS 42 & 53 FOR THE REDUCTION OF CHLORINE, TASTE, ODOR AND CYST H1-WCSL-10, H3-WCSL-10, H3T-WCSL-10 MODELS ARE TESTED AND CERTIFIED BY IAPMO R & T to NSF/ANSI STANDARDS 53 FOR THE REDUCTION OF LEAD. H1-WCS5-10, H3-WCS5-10, H3T-WCS5-10, H1-WCE-20, H3-WCE-20, H3T-WCE-20, MODELS ARE TESTED AND CERTIFIED BY IAPMO R & T to NSF/ANSI STANDARD 42 FOR THE REDUCTION OF CHLORINE, TASTE AND ODOR.